首页> 外文OA文献 >Seismic Reliability Assessment of Aging Highway Bridge Networks with Field Instrumentation Data and Correlated Failures. I: Methodology
【2h】

Seismic Reliability Assessment of Aging Highway Bridge Networks with Field Instrumentation Data and Correlated Failures. I: Methodology

机译:具有现场仪表数据和相关故障的老化公路桥梁网络的地震可靠性评估。一:方法论

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

The state-of-the-practice in seismic network reliability assessment of highwaybridges often ignores bridge failure correlations imposed by factors such as thenetwork topology, construction methods, and present-day condition of bridges,amongst others. Additionally, aging bridge seismic fragilities are typicallydetermined using historical estimates of deterioration parameters. This researchpresents a methodology to estimate bridge fragilities using spatially interpolated andupdated deterioration parameters from limited instrumented bridges in the network,while incorporating the impacts of overlooked correlation factors in bridge fragilityestimates. Simulated samples of correlated bridge failures are used in an enhancedMonte Carlo method to assess bridge network reliability, and the impact of differentcorrelation structures on the network reliability is discussed. The presentedmethodology aims to provide more realistic estimates of seismic reliability of agingtransportation networks and potentially helps network stakeholders to moreaccurately identify critical bridges for maintenance and retrofit prioritization.
机译:在公路桥梁的地震网络可靠性评估中,实践状态常常忽略了诸如网络拓扑,施工方法以及桥梁的当前状况等因素所造成的桥梁破坏相关性。另外,老化桥梁的地震脆弱性通常使用劣化参数的历史估计来确定。这项研究提出了一种方法,该方法使用网络插值有限的桥梁中的空间内插和更新的劣化参数来估计桥梁脆弱性,同时在桥梁易损性评估中纳入被忽略的相关因素的影响。在增强的蒙特卡洛方法中,使用相关桥梁故障的模拟样本来评估桥梁网络的可靠性,并讨论了不同相关结构对网络可靠性的影响。提出的方法旨在提供对老化的运输网络的地震可靠性的更现实的估计,并潜在地帮助网络利益相关者更准确地确定关键桥梁,以进行维护和改造的优先次序。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号